799789 has 2 divisors, whose sum is σ = 799790. Its totient is φ = 799788.

The previous prime is 799759. The next prime is 799801. The reversal of 799789 is 987997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688900 + 110889 = 830^2 + 333^2 .

It is an emirp because it is prime and its reverse (987997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 799789 - 2⁷ = 799661 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399894 + 399895.

It is an arithmetic number, because the mean of its divisors is an integer number (399895).

2⁷⁹⁹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

799789 is a deficient number, since it is larger than the sum of its proper divisors (1).

799789 is an equidigital number, since it uses as much as digits as its factorization.

799789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 49.

The square root of 799789 is about 894.3092306356. The cubic root of 799789 is about 92.8236144943.

The spelling of 799789 in words is "seven hundred ninety-nine thousand, seven hundred eighty-nine".